Always provide a tag when building with build-all-docker-images
Always provide a tag when building with build-all-docker-images

When we're not providing a tag, the build script will use one based on
the short SHA of the tip of the current git branch.

Make the `build-all-docker-images` script always provide a tag to
`build-docker-image` in order to prevent issues with Docker not being
able to find the base image when changing branches during an ongoing
build.

Closes-Bug: #1458739
Change-Id: Id6925b792f46d14b20a7dbebfaf0d351ddec6538

LoHChina/kolla,rajalokan/kolla,negronjl/kolla,nihilifer/kolla,rajalokan/kolla,mandre/kolla,mrangana/kolla,LoHChina/kolla,jakedahn/kolla,dardelean/kolla-ansible,openstack/kolla,toby82/kolla,coolsvap/kolla,chenzhiwei/kolla,limamauricio/mykolla,meticulo3366/kolla,HackToday/kolla,jakedahn/kolla,rahulunair/kolla,mandre/kolla,tonyli71/kolla,dardelean/kolla-ansible,coolsvap/kolla,fdumpling/kolla,mandre/kolla,coolsvap/kolla,intel-onp/kolla,dardelean/kolla-ansible,jakedahn/kolla,invenfantasy/kolla,openstack/kolla,tonyli71/kolla,rahulunair/kolla,LoHChina/kolla,invenfantasy/kolla,limamauricio/mykolla,chenzhiwei/kolla,brk3/kolla,negronjl/kolla,chenzhiwei/kolla,intel-onp/kolla,meticulo3366/kolla,toby82/kolla,brk3/kolla,stackforge/kolla,invenfantasy/kolla,GalenMa/kolla,HackToday/kolla,rajalokan/kolla,negronjl/kolla,nihilifer/kolla,limamauricio/mykolla,toby82/kolla,stackforge/kolla,GalenMa/kolla,HackToday/kolla,stackforge/kolla,mrangana/kolla,fdumpling/kolla,fdumpling/kolla